import java.util.*; 

public class test {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		/*
		 *3 1aba        1(aba)
		 *5 2 4ababa      2(aba)1(bab)1(ababa)
		 *7 3 9abababa    3(aba)2(bab)2(ababa)1(babab)1(abababa)
		 *9 4 16ababababa 4(aba)3(bab)3(ababa)2(babab)2(abababa)1(bababab)1(abababab)
		 */
		
		long b = (a-1) / 2;
		long ans = b * b;
		
		System.out.println(b);
		System.out.println(ans);
	}
}